Rivet-punch.



J. J. SAUER.

RIVET PUNCH.

APPLICATION FILED rmme, 191s.

Patented May 5, 1914.

2 BHEETEFSHEET 2.

Qwumtoz BACOB J.5AUER JACOB J. SAUER, OF ST. JOSEPH, MISSOURI.

RIVET-PUNGH.

Specification of Letters Patent.

Application filed February 26, 1913.

Patented May 5, 1914. Serial No. 750,920.

To all whom it may concern:

Be it known that I, JACOB J. SAUER, a citizen of the United States, residing at St. Joseph, in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Rivet-Punches, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in punches and more particularly to rivet punches, the object of the invention being to provide a rivet punch which is particularly adapted for use in forcing broken rivets out of the bows of vehicle tops, although the device may be used for any similar purpose or any kind of a rivet.

Another object of the invention is to provide a rivet punch of the above character which will possess advantages in points of efliciency and durability, is inexpensive of manufacture and at the same time is simple in construction and operation.

With the above and other objects in view, the invention consists in the novel features of construction and the combination and arrangement of parts to be hereinafter more fully described, pointed out in the claim and shown in the accompanying drawings, in which Figure 1 is a side elevation of a rivet punch constructed in accordance with my invention. Fig. 2 is a top plan view; Fig. 3 is an end elevation; and Fig. & is a similar view illustrating the end opposite that shown in Fig. 3.

Referring more particularly to the drawings, 1 indicates the supporting lever, one end of which is bifurcated to form spaced parallel arms 2 which are provided with alined openings 3 and 3, one of said openings being provided with screw threads as shown at l. Movably mounted within the threaded opening is a threaded shaft 5, one end of which is formed into a tapering point 6 providing a suitable punch. The other end of the shaft 5 is reduced and mounted upon the reduced portion of the shaft and keyed thereto is a ratchet 7, said ratchet being disposed at the inner end of the threaded portion of the shaft.

Loosely mounted upon the reduced end of the shaft is an operating lever 8. Pivotally mounted upon said lever by means of the pin 9 is a pawl 10, the inner end of which is adapted to engage the ratchet 7 to prevent backward movement of the shaft. Formed integral with the pawl and projecting at right angles thereto is a finger hold 11 which may be grasped to disengage the pawl from the ratchet 7 Mounted upon the outer end of the reduced portion of the shaft and keyed thereto is a hand wheel 12 which is securely held in position by means of'the nut 13 threaded upon the outer end of the shaft, said hand wheel being adapted to be rotated to turn the shaft 5 backward after the rivet or bolt has been removed. It is to be observed that such finger hold 11 is positioned adjacent or in close proximity to the rim or periphery of the wheel 12 whereby a digit of the hand in engagement with such wheel may be caused to contact with the finger hold to elevate the pawl 10 from the ratchet 8, in order that such wheel 19. may be properly rotated to withdraw the punch.

In the operation of my device, the article containing the rivet or bolt which is to be removed is placed between the arms 2 so that the rivet or bolt is arranged in alinement between the opening 3 and the end of the punch 6. The supporting lever l is gripped in one hand to support the work, the lever 8 is then actuated by the other hand to rotate the shaft 5, whereby the point or punch 6 will engage with the end of the rivet and force the same out through the opening 3', the pawl 10 preventing backward movement of the shaft. In removing the punch 6 fro-m the opening vacated by the rivet, the pawl 10 is removed from engagement with the ratchet 7 and the handle 12 is rotated so that the shaft 5 will be moved backward away from the opening 3. From this it will be'seen that. a broken rivet or bolt may be quickly removed from any article and that the device in itself is extremely simple in construction and operation. In the use of my improved punch, it is preferred that the supporting lever 1 be held in the left hand while the actuating lever 8 is operated with the right hand. From this it will be seen that the shaft 5 may be readily rotated through the medium of the ratchet 7 whereby the rivets may be quickly removed by the punch 6 and the shaft returned to its operative position by means of the hand wheel 12.

While I have shown and described the preferred form of my invention, it will be obvious that various changes in the details of construction and in the proportions may be resorted to for successfully carrying my invention into practice without sacrificing any of the novel features or departing from the scope of the appended claim.

What I claim is A rivet puncher including a supporting lever bifurcated at one end. to form spaced arms having alined openings, a screwthreaded shaft mounted in one of said openings for axial movement, a puncher formed upon the inner end of said shaft, said shaft being provided at its upper end with a re duced port-ion, a ratchet fixedly mounted upon said reduced portion, an actuating lever loosely mounted upon the reduced portion adjacent the ratchet, a movable pawl carried by the lever and adapted to engage the ratchet to turn the shaft, whereby the actuation of the lever Will move the shaft axially, a hand wheel fixedly mounted on the reduced portion of the shaft and a 1 finger-hold formed on the pawl and extending at right angles thereto, said finger-hold being positioned on the pawl in close proximity to the rim of the wheel whereby'such finger hold may be conveniently engaged by a digit of the hand contacting with the wheel.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

JACOB J. SAUER.

YVitnesses:

' C. D. RADFoRI),

J. W. SAUER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

